Q1. What do you mean by z-transform of the discrete signal x(n)?
Ans.: The z-transform of discrete time signal x(n) and it is given by
where z is the complex variable and the z-transform of x(n) is also represented by the operator Z i.e.,
Here X(Z) and x(n) are known as z-transform pair which is represented as
Q2. What do you mean by Region of Convergence?
Ans.: The region of convergence are the values of z for which the z-transform converges. Eq. (6.1) shows that z-transform is an infinite ...